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When do I need a new FE?

PM

Member
Joined
15 Dec 2007
Messages
615
Location
London
Hi, how long should my 2kg fire extinguisher last for?

I am running about 1.5 bubbles per second (counted on ADA bubble counter) for 11 hours per day.

I think it's been running for about 8 months (ish)?

Any ideas??? :D

Ta
 

Themuleous

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Joined
6 Jul 2007
Messages
4,122
Location
Aston, Oxfordshire
Not really, every set up is different. Just keep an eye on the reg. Once the cylinder pressure (which starts at around 50bar) starts to drop you need to be thinking about getting a replacement. I tend to run my cylinders until they say 5ish bar as there is loads left in them and I generally get 3-4 more weeks worth of CO2, probably more in your case. Once the cylinder starts dropping, you will need to keep an eye on the reg pressure which starts rising when this happens, and consequently increases the bubble rate, so you might need to adjust the needle value to compensate.

Hope that helps.

Sam
 

ulster exile

Member
Joined
6 Jul 2007
Messages
351
Location
Birmingham, UK
Definitely take the advice on not waiting until your FE is empty to think about refilling. I returned from holiday to find a green tank and lots of dead fish, plus an empty FE. I suppose the FE dumped it's remaining gas whilst I was away, but the algae was amazing. The surface was covered with a green slime, so thick that bubbles had formed under it, but not burst. I feel lucky, I'd any fish left, but I've lost most of the plants due to either them being covered in algae or suffering from low light as the slime blocked out loads of it.

I knew it was due to run out as I know how long a FE lasts on my tank approximately; I should have pulled my finger out and re-filled it before I went away :oops:

Lesson learnt!
 

a1Matt

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Joined
10 Mar 2008
Messages
2,489
Location
Bromley
I am currently using an Aquili reg, it has a built in valve and no gauges. Have got through about 4 bottles now, and I have never had a reg dump. I guess this is a quirk of my reg. So I simply replace the FE when the gas stops coming out.

I do notice that as the bottle empties the bubble count lowers which is no big deal, I just keep an eye on it and tweak it up a little every couple of weeks to maintain the count.
 

Behold

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6 Aug 2008
Messages
218
Location
Basingstoke. Hants
Why would it dump? surely it would need to exceed 50 bar to do so$
 

JamesM

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17 Apr 2008
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1,903
Location
The BIG End, South Wales
PM said:
Hi, how long should my 2kg fire extinguisher last for?

I am running about 1.5 bubbles per second (counted on ADA bubble counter) for 11 hours per day.

I think it's been running for about 8 months (ish)?

Any ideas??? :D

Ta
Screw you :lol:

I can't get 2kg to last more than 7 or 8 weeks on my 18 gal :rolleyes:

Lucky bugger :)
 

LondonDragon

Administrator
UKAPS Team
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21 Feb 2008
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11,282
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London
My 2Kg bottle lasted just over 4 months in my 30G tank, lets wait and see how long and FE lasts, should be the same though, I already have two spare just in case LOL
 

PM

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Thread starter
Joined
15 Dec 2007
Messages
615
Location
London
JAmesM said:
PM said:
Hi, how long should my 2kg fire extinguisher last for?

I am running about 1.5 bubbles per second (counted on ADA bubble counter) for 11 hours per day.

I think it's been running for about 8 months (ish)?

Any ideas??? :D

Ta
Screw you :lol:

I can't get 2kg to last more than 7 or 8 weeks on my 18 gal :rolleyes:

Lucky bugger :)

What are you running it at, a million BPS? :lol:
 

JamesM

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Joined
17 Apr 2008
Messages
1,903
Location
The BIG End, South Wales
:lol:

I was running around 3bps with a glass diffuser... now I'm using an inline Boyu diffuser and without touching the needle valve its around 4bps. That's whats needed to get the drop checkers green :? My wife is not impressed :lol:
 

aaronnorth

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19 Feb 2008
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3,941
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worksop, nottinghamshire
JAmesM said:
:lol:

I was running around 3bps with a glass diffuser... now I'm using an inline Boyu diffuser and without touching the needle valve its around 4bps. That's whats needed to get the drop checkers green :? My wife is not impressed :lol:

have you checked for leaks?

i have had mine for 3 month and it should easily last another 3! (15gal)
 
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